JPS5946660A - Electrostatic charging device - Google Patents
Electrostatic charging deviceInfo
- Publication number
- JPS5946660A JPS5946660A JP15763882A JP15763882A JPS5946660A JP S5946660 A JPS5946660 A JP S5946660A JP 15763882 A JP15763882 A JP 15763882A JP 15763882 A JP15763882 A JP 15763882A JP S5946660 A JPS5946660 A JP S5946660A
- Authority
- JP
- Japan
- Prior art keywords
- wire
- plane
- charging device
- axis
- bent
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G15/00—Apparatus for electrographic processes using a charge pattern
- G03G15/02—Apparatus for electrographic processes using a charge pattern for laying down a uniform charge, e.g. for sensitising; Corona discharge devices
- G03G15/0291—Apparatus for electrographic processes using a charge pattern for laying down a uniform charge, e.g. for sensitising; Corona discharge devices corona discharge devices, e.g. wires, pointed electrodes, means for cleaning the corona discharge device
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- General Physics & Mathematics (AREA)
Abstract
Description
【発明の詳細な説明】
本発明はηＬ子写貫複写装■′ｔの帯電装置に関し、更
に肝しくは該帯ニ装置の電極ワイヤーの張架手段の改良
に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a charging device for a ηL copying device, and more particularly to an improvement in the tensioning means for the electrode wire of the band device.
ｍ子写真複写装置（以後複写機と略称する）には、像担
持体表面に静電像を形成する静電荷市電、記録紙を剥離
する剥ＩＶ）Ｃ帯電、或は記録紙剥離後像担持体面に残
留する静電荷を除去する消去帯電等のためにタングステ
ンｍ等の電極ワイヤーを張架した帯電装着が使用される
。A photocopying device (hereinafter abbreviated as a copying machine) uses an electrostatic tram to form an electrostatic image on the surface of an image carrier, a peel-off IV) C charge to peel off the recording paper, or an image-bearing system after the recording paper is peeled off. A charging device with an electrode wire made of tungsten m or the like stretched thereon is used for erasing charging to remove static charges remaining on the body surface.
これら従来の帯１イ装置に於る電極ワイヤー（以後ワイ
ヤーと略称する）はその端部の一方を帯電装置の一端に
引掛は等によって係止し、他の端部にコイルばねを連結
し、該コイルばねを帯１！装加の他端に固定し適当な張
力をワイヤーに与えて張架される。The electrode wire (hereinafter abbreviated as wire) in these conventional band 1 devices has one end hooked to one end of the charging device by a hook or the like, and the other end connected to a coil spring. Band 1 of the coil spring! It is fixed to the other end of the wire and stretched by applying appropriate tension to the wire.
また張架するに当って従来は前記係止点、フィルばね連
結点及びコイルばね固定点は、は〈張架方向の一線上に
位詮さけられている。Furthermore, when tensioning, conventionally the locking points, fill spring connection points, and coil spring fixing points are positioned on a line in the tensioning direction.
前記した従来の帯電装置を第１図に示した。図に於てＤ
は帯電装置であり、Ｄの両端には絶縁体で桿７成された
端部筺体１及び１′を有し、その間に一般に今月で形成
したシール部材２を差挟み、端部筐体１′に設けたワイ
ヤ−３０係止部ｔ４’ ４にワイヤー３の一端を係止し
、端部筺体１内に固定部材５によって一端を固定された
コイルばね６の他端のフック７でワイヤー３の他端を係
止することにより・一定の張力でワイヤー３を張架しで
ある。The conventional charging device described above is shown in FIG. In the diagram D
is a charging device, and has end casings 1 and 1' made of insulating rods 7 at both ends of D, with a sealing member 2 generally formed this month being inserted between them. One end of the wire 3 is locked to the wire 30 locking part t4' 4 provided in the wire 30, and the wire 3 is held by the hook 7 at the other end of the coil spring 6 whose one end is fixed in the end housing 1 by the fixing member 5. By locking the other end, the wire 3 is stretched with a constant tension.
またワイヤー３の張架方向を特定するため端部筺体１，
１′にはワイヤー３０当接部材８，８′等が設けられる
。尚例示した帯電装置は像担持体の回転軸（図示せず）
に平行に挿脱する彫弐のもので係止部材４は電源端子を
兼ねている。In addition, in order to specify the stretching direction of the wire 3, the end housing 1,
1' is provided with wire 30 abutting members 8, 8', etc. The charging device illustrated is the rotating shaft (not shown) of the image carrier.
The locking member 4 doubles as a power terminal.
図に示すようにワイヤー３の張架は係止部材４、当接部
材８′及び８、フック７及び固定部′！Ａ５の間１で・
はに−直線に張架さ」ｔており、従ってコイルばね６を
内蔵する端部筺体１はコイルばね長及びばねの伸び代（
しろ）その他の部材設置のために長大となり１その分だ
け複写蛎の中に不機能空間を強要し、複写機の奥行幅を
大ぎ＜シ、コンパクト化の妨げと７“ｆつ“Ｃいる。As shown in the figure, the wire 3 is stretched by a locking member 4, abutting members 8' and 8, a hook 7, and a fixing part'! In A5 room 1.
Therefore, the end housing 1 that houses the coil spring 6 has a length of the coil spring and the extension of the spring (
1) Due to the installation of other parts, the length is increased, which forces a non-functional space inside the copying machine, increases the depth and width of the copying machine, and hinders miniaturization. .
従って本発明の目的は、帯電装置の頗縮によってコンパ
クト化された複写機を提供することにある。SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide a compact copying machine by reducing the size of the charging device.
上記目的は、電極ワイヤーを張架した帯電装置に於て、
′ｌＶＬ極ワイ・）・−の端部な折曲げて張架し固定し
たことを°り、“１°徴とする・１）Ｙγ（Ｌ装置１に
よって達成できる。The above purpose is to
1) Yγ (can be achieved by the L device 1).
本発明はワイヤーの張架方向に対しワイヤー当接点に於
て角αだけ折曲げてワーｒヤーを固定し端部筐体のワ・
ｒヤー張架方向の徒長さを削除することから成る。The present invention fixes the wire by bending it by an angle α at the wire contact point with respect to the tension direction of the wire.
This consists of eliminating the extra length in the direction of the rack.
第５図に於て同図（ａ）は帯電装置’−ｔ Ｄを像担持
体Ｓに対し所＞ＩＴ位Ｍに着座さセた場合・１）テ電：
！＋：３ｉｉ″ｔＩ）のワ軸ａＳ に直角な面で切った
簡略な断面図で、同図（ｂ）はワイヤー軸ａＤを含み自
由に回転さＩすることに、しって任意（（定めうる平面
ｐＤである。In FIG. 5, (a) shows the case where the charging device '-tD is seated at position M with respect to the image carrier S. 1) Electron charging:
! +: 3ii''tI) is a simple cross-sectional view taken on a plane perpendicular to the wire axis aS, and the figure (b) is a simple cross-sectional view taken along a plane perpendicular to the wire axis aS of the wire axis aD. This is the clear plane pD.
同図（ｂ）に示すように平面ｐＤ Ｋ於て軸ａＤ に沿
って張架されたワイヤーは当１ヰ点ｐに於て壬任、ｌ；
’＋：の角αだけ折曲げられる。角αは好しくは６０以
上１８０°であるが、平面ｐＤに交わる任意の平面（図
示−υず）」二で折曲げが袷数回繰返さｋてもよい。As shown in FIG. 1(b), a wire stretched along the axis aD on the plane pDK has a position at a point p;
'+: is bent by the angle α. The angle α is preferably 60° or more and 180°, but the bending may be repeated several times at any plane (not shown) intersecting the plane pD.
但し平面ｐＤ の中、像担持体Ｓとの切子面１）Ｄｔ及
びｐ）２のなす角２０間にある平面ｐＤ部分に於ては角
αば９００以下であることが好（７い。尚下面ｐＤ＋及
びＰＤｚの交角２θを等分する軸ａＤ及びａＳを含む平
面を平面ｐ（Ｄ−８）と１〜てＪＵ ＜。However, in the plane pD between the angle 20 formed by the facets 1)Dt and p)2 with the image carrier S, the angle α is preferably 900 or less (7). A plane including axes aD and aS that equally divides the intersection angle 2θ of the lower surface pD+ and PDz is defined as a plane p(D-8), and JU<.
次妊更に具体的に実施例を用いて説明する。第２図は本
発明の１実施例を像担持体Ｓ側からみた平面ｐ（Ｄ−８
）に直角な平面ｐＤに、Ｌる断面図である。尚本発明に
直接関係のない落電防止、アース或は帯電装置【コック
機構等は図かを省略しである。Next pregnancy will be explained in more detail using examples. FIG. 2 shows a plane p (D-8) of one embodiment of the present invention viewed from the image carrier S side.
) is a sectional view taken along a plane pD perpendicular to . Note that illustrations of electric drop prevention, grounding, and charging devices (cock mechanisms, etc.) that are not directly related to the present invention are omitted.
該実線例の帯電セＪ装置Ｄ１は前記平面ｐ（Ｄ−８）に
添って像担持体Ｓに対して装脱される添置形式をとって
いる。The charging unit D1 shown in the solid line example is attached to the image carrier S along the plane p (D-8).
ワイヤー３は当接部材８に於て、平面ｐ （Ｄ−８）に
直角ｌ、「平面ｐＤ内に於てα−９００だけ折曲げられ
て固定されている。Ｃは機枠、９は機枠Ｃに設けられた
帯電装Ｗｔ ＤＩの着座部材である。また既出の記号と
同記号は同曲であるので説明を省略する。The wire 3 is fixed to the abutting member 8 at a right angle l to the plane p (D-8) and bent by α-900 in the plane pD. C is the machine frame, and 9 is the machine frame. This is a seating member for the charging device Wt DI provided in the frame C. Also, since the same symbols as the previously mentioned symbols are the same, the explanation will be omitted.
次に８ｒ￥：３図に別の実施例１帯ｍ装置り、を示した
。Next, another example 1 band m device is shown in Figure 8r\:3.
ワイヤー３は端部筐体Ｉａ内の当接部材８ａ及び８ａ′
によ−Ｊ テα＝１８０’だけ、前記平面ｐ（Ｄ−８）
Ｋ於て軸ａＤ （ワイヤー３）に関しＩＩＩＩｌＩａ
ｓとは反対側にＩＪ″ｒ曲げられ、フック７、フィルば
ね６を介し固定部材５によって固定されている。Ｓは像
担持体である。The wire 3 is connected to the abutting members 8a and 8a' in the end housing Ia.
Yo-J Te α=180', the plane p(D-8)
Regarding axis aD (wire 3) at K, IIIlIa
It is bent IJ''r in the opposite direction to s, and is fixed by a fixing member 5 via a hook 7 and a fill spring 6. S is an image carrier.
更にｍ４ｍに他の実施例り、を示した。同図は端部筐体
１ｂを軸ａＤに直角な面で切り、他端の端部筺体１′の
方をみた断面図である。ワイヤー３は軸ａＤに直角な平
面（端部筐体とシール部材との境界板面）に沿って当接
部材８ｂによってα−９０’に折曲げらハ、該筐体内に
於て当接部材 ８ｂ’にょっＹ： Ｎｆ ヒ１．８００
近＜折曲げらｈｓフック７、フィルばね６を介して固′
７Ｉ部材５によっ”Ｃ固定されている。Furthermore, other examples are shown in m4m. This figure is a cross-sectional view of the end housing 1b taken along a plane perpendicular to the axis aD, looking toward the other end, the end housing 1'. The wire 3 is bent at α-90' by the abutment member 8b along a plane perpendicular to the axis aD (the boundary plate surface between the end casing and the sealing member), and the abutment member is placed inside the casing. 8b'Y: Nf Hi1.800
Near the bending hs hook 7, fix it via the fill spring 6.
"C" is fixed by the 7I member 5.
以上詳述したようにワイヤーの端部を複写機の不（７１
能空間へ折曲げて帯電装置を短小ならしめることによっ
て複写機の奥行幅を縮小しその分：Ｊン／＜りｌｌＨ，
ｊ写機を提供することができる。As detailed above, the end of the wire is
By bending the charging device into the functional space and making the charging device shorter and smaller, the depth of the copying machine can be reduced.
J-photography machine can be provided.
第１図は従来の帯電装置を、第２図は本発明のイ；Ｙ電
装ト′ｉをｑイヤ゛−と像担持体の回転軸を含む平面に
直角な平面で切った時の断面図１第３図は上と異なる本
発明実施例を前記ワイヤーと回転軸を含む平面で截った
時の断面側面図である。
また第４図は本発明の前２者とは具る実施例の端部をワ
イヤー・軸に直角な面で切った時の断面図である。また
第５図は説明補助図である。
Ｄ 、 Ｄ、、 Ｄ、及びＤ３・・・帯電装置、Ｓ・・
・像担持体、Ｃ・・・機枠、１ 、１’、Ｉａ及び１ｂ
・・・端部筺体、２・・・シール部材、３・・・ワイヤ
ー、５・・・固ｒ＋Ｈ’ｆｆｌ材、６ 川）イルばね、
８ 、８ａ 、 ８ａ’、 ８ｂ及び８）／・・・当接
部材。
代理人 桑 原 砂 美
第ｔ ＩＡ
隼２ ＩＩFigure 1 is a sectional view of a conventional charging device, and Figure 2 is a sectional view of the present invention when the electric device (i) is cut along a plane perpendicular to the plane that includes the (q) ear and the rotation axis of the image carrier. 1. FIG. 3 is a cross-sectional side view of an embodiment of the present invention different from the above, taken along a plane including the wire and the rotation axis. Further, FIG. 4 is a cross-sectional view of the first two embodiments of the present invention when the end portion thereof is cut along a plane perpendicular to the wire/axis. Further, FIG. 5 is an auxiliary diagram for explanation. D, D,, D, and D3...charging device, S...
・Image carrier, C...Machine frame, 1, 1', Ia and 1b
... End housing, 2... Seal member, 3... Wire, 5... Hard + H'ffl material, 6) Illustrated spring,
8, 8a, 8a', 8b and 8)/... contact member. Agent Suna Kuwahara Midai T IA Hayabusa 2 II
Claims (1)
ワ極子イヤ一部な折曲げて張架し固定したことを特徴と
する帯電装置。A charging device characterized in that, in a band+ry device in which an electrode wire is stretched, a TTE pole electrode is partially bent and stretched and fixed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15763882A JPS5946660A (en) | 1982-09-09 | 1982-09-09 | Electrostatic charging device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15763882A JPS5946660A (en) | 1982-09-09 | 1982-09-09 | Electrostatic charging device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5946660A true JPS5946660A (en) | 1984-03-16 |
Family
ID=15654092
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15763882A Pending JPS5946660A (en) | 1982-09-09 | 1982-09-09 | Electrostatic charging device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5946660A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7463850B2 (en) | 2004-07-26 | 2008-12-09 | Brother Kogyo Kabushiki Kaisha | Charging device for a process cartridge and an image forming apparatus |
-
1982
- 1982-09-09 JP JP15763882A patent/JPS5946660A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7463850B2 (en) | 2004-07-26 | 2008-12-09 | Brother Kogyo Kabushiki Kaisha | Charging device for a process cartridge and an image forming apparatus |
| US7813677B2 (en) | 2004-07-26 | 2010-10-12 | Brother Kogyo Kabushiki Kaisha | Process cartridge having charging device with conductive grid electrode |
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